In this Question Line video, Jason responds to questions regarding composite profile control. The following drawing and questions were submitted through our GD&T Questions submission page: 


  1. Are the Datum structures in the two examples above valid for this drawing?
  2. If they are valid, wouldn’t both examples yield the same results when inspected?


In this video, Jason discusses a composite feature control frame controlling profile tolerance. Additional information regarding composite feature control frames can be found in this article: Composite vs Multiple Single Segment Tolerances. 



If you have a GD&T question, submit it to our experts using the new GD&T Questions submission page! 

While we can’t guarantee a response to every question, we make every effort to address as many as possible. If we select your question for a video answer, we will notify you and publish the video on our YouTube channel. 

* If you are a current student, reach out to us directly and we will get you into contact with your instructor. Active students’ questions receive a direct response within 24-48 hours. 

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